Does anyone know what capacitor ALO's IMOD LOD is using right now?

Design a servoed voltage shifter and show those Imodders whose boss. 

No cap is as good as no cap at all!

Just a different way of doing things. Caps in the signal path ALWAYS do their own interesting & funky-bad things to the sound. Get rid of them. 

I dont know which caps ALO uses, but why limit yourself to the same when you can maybe do better?

If you have room & budget for them I would use nicer film caps. 

If you dont Nichion Muze and Elna (dont remember which line - Silmic? ) electrolytic caps are fairly small and nice. 

Wire gauge has very limited effect on FR, and not necessarily how you may think. Use the THINNEST wire you are comfy with for durability. Generally 24-28ga. If your a daredevil (and dont mind rebuilding the thing every few years) use 30-40. If nothing else big fat wires dont go into the connectors cleanly - durability really sucks when you cant use the strain relief.

40 is VERY delicate (physically) but sounds much nicer than most would think. I would not make a portable cable this thin but have made RCA's for home use which lasted about 2 years, countless system changes, and 12 or so HF meets. 

30 is actually stronger than you may think. 3 year old portable mini-RCA cable still kicking strong. 30ga is a little tricky to work with (I always cut it with the wire strippers so it takes a bunch of tries to get enough pieces stripped to make a cable :p ) but totally awesome.

24-26 is bombproof. 

In a line-level application, with high impedances on the receiving end fatter wire gauges dont do any better at passing bass or any other frequency. Considering parallel capacatances (which are a function of surface area amongst other things & surface area is larger with fatter wires) and how they screw things up when highish source impedance is considered the fatter wire has some serious drawbacks. I doubt parallel capacitances will show up much in a 3" cable, but its worth remembering when you make longer cables.